This mod provides stable entity-based elevators for fast vertical travel without teleportation. Current I've only written recipes for use with technic and homedecor/chains, so if anyone would like to make a pull request with default-compatible recipes that would be appreciated.
This mod has been live on Survival in Ethereal for a couple weeks, and has been tested by several players there.
Requires a version of Minetest Engine newer than 0.4.15 for best usage, though it is compatible with 0.4.15-release. Development began with a version from 2017-03-07.